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Table 4 Results of ROC analyses

From: The size of the treatment effect: do patients and proxies agree?

 

MSIS-29

Cut-off point

Sensitivity

Specificity

PPV

NPV

Patients

Physical scale

-8.13

76%

76%

82%

68%

 

Psychological scale

-5.56

72%

65%

74%

65%

Proxy respondents

Physical scale

-6.88

80%

71%

80%

71%

 

Psychological scale

-4.17

64%

71%

76%

57%

  1. PPV, positive predictive value; NPV, negative predictive value